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The surveillance for data collection in wireless sensor networks (WSNs) setting is recognized as an important application of WSNs. Given an area of interest and a number of wireless sensors, typical problems to be addressed are covering the whole area while prolonging the network lifetime. It is explicitly observed that most existing studies focus on limited case in which the interested area is static...
Selection cooperation is a preferable cooperative scheme for wireless sensor networks (WSNs) for its simplification and easy implementation. In this paper, we present a selection cooperation experimental platform (CEP) based on IEEE 802.15.4 WSNs using cheap radios. This work concentrates on employing the lightweight selection cooperation protocol (LSCP) with feedback to govern the cooperation between...
LEBKM for Wireless Sensor Networks (WSN) is proposed in this paper, which employs the localized strategy. The key for each node is integrated from two keys separately provided by other two key managements. Once the nodes have been deployed, the localized strategy is adapted to update the pre-distributed keys in nodes within the same cluster. The resilience of the network is significantly enhanced...
Wireless sensor networks (WSNs) are commonly used in many applications now. According to the capability of sensor nodes, there are two types of WSN: homogeneous sensor networks and heterogeneous sensor network (HSN). Large-scale homogeneous sensor networks require high computation overhead, communication overhead and large memory storage. To achieve better performance and scalability, large-scale...
Due to the low-rate radios used and the effects of wireless interferences in workshop and warehouse's foul environment, traditional workshop and warehouse informatization system has many defaults, such as, manual business process management, information flowing delay after material flowing, high mistakes ratio, stacking and crane job schedule in a state of chaos, very much production waste, and hard...
With the development of global manufacturing organizations, some automobile body companies outsource blanking process to the professional factories which have decoiling & blanking & stacking production lines. In order to supply kinds of sheet-metal just in time, the blanking factories often have large-scale warehouse of nonstandard coils. So workshop-material-flow and warehouse management...
In general, TCP sender will take all the packet losses as congestion caused and reduce the packet sending rate to avoid the worsening of network condition. In multihop wireless networks, the long propagation time, poor link quality and high bit error rate make this scheme slow-moving, overcompensated and inefficient.This paper proposes a new optimized data delivery scheme, called TCP receiver-aided...
The fundamental issue in sensor networks is the quality of monitoring provided by the networks under the energy constraint. The quality is usually measured by coverage. In this paper, unlike previous research, the k-coverage problem is investigated in the directional sensor networks with turnable orientation. Furthermore, probabilistic sensing model is adopted for more realistic than deterministic...
Wireless sensor network (WSN) consists of tiny nodes with sensing, actuating, computation, wireless communications capabilities. Because of node's limited energy, many routing, topology control, media access control (MAC) protocol have been specially designed. This paper discussed power management of topology control, media access control protocol and routing protocol in wireless sensor network. Based...
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